C# windform自定义控件的属性小知识

word中的加粗变斜之类的一直让我以为是button，直到我接触了自定义控件，才发现实现这种机能最好的是CheckBox，然后我们在做一个系统的时候，这种控件有可能要用好多次，总不能在用一次的时候，就去拉一个CheckBox，并进行各种复制吧，所以最好的方式就是自定义一个控件，自定义点击的Image属性，这样你只要替换掉Image，你就要让这个变成变粗的CheckBox，变斜的CheckBox等等。

 1  private void CmpCheckButton_MouseLeave(object sender, EventArgs e)
 2         {
 3             if (!this.Checked)
 4             {
 5                 this.BackgroundImage = ImageNormal;
 6                 this.Invalidate();
 7             }
 8         }
 9         private void CmpCheckButton_MouseHover(object sender, EventArgs e)
10         {
11             if (!this.Checked)
12             {
13                 this.BackgroundImage = ImageMouseEnter;
14                 this.Invalidate();
15             }
16         }
17         private void CmpCheckButton_CheckedChanged(object sender, EventArgs e)
18         {
19             var image = ImageNormal;
20             if (this.Checked && ImageChecked != null)
21             {
22                 image = ImageChecked;
23             }
24             else
25             {
26                 image = ImageMouseEnter;
27             }
28             this.BackgroundImage = image;
29             this.Invalidate();
30         }
31         private System.Drawing.Image _imageNormal;
32         [Description("通常图片")]
33         public System.Drawing.Image ImageNormal
34         {
35             get { return _imageNormal; }
36             set
37             {
38                 _imageNormal = value;
39                 this.BackgroundImage = _imageNormal;
40                 this.Invalidate();
41             }
42         }
43         private System.Drawing.Image _imageChecked;
44         [DefaultValue(null), Description("Checked状态图片")]
45         public System.Drawing.Image ImageChecked
46         {
47             get { return _imageChecked; }
48             set
49             {
50                 _imageChecked = value;
51                 if (Checked) this.BackgroundImage = _imageChecked;
52                 this.Invalidate();
53             }
54         }
55         private System.Drawing.Image _imageMouseEnter;
56         [DefaultValue(null), Description("MouseEnter状态图片")]
57         public System.Drawing.Image ImageMouseEnter
58         {
59             get { return _imageMouseEnter; }
60             set
61             {
62                 _imageMouseEnter = value;
63                 this.BackgroundImage = value;
64                 this.Invalidate();
65             }
66         }

posted @ 2017-04-23 22:51 zx1993 阅读(1178) 评论(0) 收藏举报

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